Type-writing machine.



- PATENTED DEC. 10, 1907.

P. X. WAGNER.

TYPE WRITING MACHINE:

APPLICATION FILED MAY 18, 1905.

4 SHEETS-SHEET 1- No. 873,641. PATENTED DEG.10,1907. P. X. WAGNER.

' TYPE WRITING MAGHINE.

APPLIOATIONYPILEDIMAY 1a, 1906.

4 SHEETS-SHEET z.

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PATENTED 113010, 1907, F. X. WAGNER. TYPE WRITING MACHINE.

APPLICATION FILED MAY 18, 1905.

4 SHEETS-SHEET 8.

PATENTED DEC. 10, 1907. P. X. WAGNER.

TYPE WRITING MACHINE.

APPLICATION FILED MAY 18, 1905.

filed by me in the United States Patent new and useful Improvements in pNi En s'r Es PATENT ()FFIQE;

FRANZ X'LWAGNE-R, OF NEW YORK, N; v nssieNon To UNnERWoon TYPEWRITER COM OF NEW YORK, N. Y.,, A CORPORATION. OF NEW JERSEY? 'TYrE-wnrrme momma Specification of Letters Patent.

. Patented Dec; 10, 1907.

Original application filedNovember 12. 1904. Serial No. 232,418. Dividedandthis appliostionflled May 18. 1905. Serial N 0. 260,983. I

Toall whom "it may concern:

WAGNER, a

citizen of the United: States, resident'ofthe borough of the Bronx, city, county, and State of New York, have invented certain r Writing Machines, Of which he following is aspeeiiication. I

My invention relates to typewriting machines and has for its object'toimprove the carriage mechanism and the platenshifting -mechanism ofsuch machines.

My invention will be fully described here inafter and the features of novelty pointed out in the appended'claims.

' The present application is a division of one Office on November 12, 1904, Serial No.

Reference is to be had to the accompany.- in drawings in which igure 1 1s a central sectional elevation of a typewriting machine embodying my improvements; Fig. 2 is an elevation of suchmachine from the left side with the parts in section; Fig. 3 is a rear elevation partlyin section;- Fig.4. is a sectional elevation substantially on the line 44 of'Fig. 3; Fig. 5 is a sectionalel'evation. of the lifting bar of the shifting frame; Fig. 6 is a detail elevation showing the spring for balancin the shift frame;,Fig. 7 is a detailfront view of the shift rail; and Fig. S-is' an enlar ed section showin the connection of the shi t rail with the shitframe.

The type bar action comprises the keys 1,

' mounted on levers 2, which are fulcrumed at 3, preferably in such a manner as to be easily removable. Each ke lever is connected with an elbow lever 4 y means of a pin and slot connection 5, -said.elbow lever bein fulcrumed at 6 upon the frame of the mac 'ne.

. Each elbow lever is connected by means of a link 7, with a t 6 bar 8 normally resting on a cushion 9. v e type bar 8 is fulcrumed at 10 upon the segment 11 and is preferably held in place by means of a latch 12. The key lever 2 also operates the escap'e'ment mechanism in any approved manner for instance, through the medium of 'a' universal bar 13' engaged by a toe 2 on the key lever2.

' :The carriage is fed in", the usual manner'by means of-the spring 14., connected with the tape 15, one end of which is secured to the I carriage. The carriage consists of two por. tions, the frontportionlfi, which carries the- PANY,

platen '17, and the rear portion 18 which carfeed' rack 19 carried by the rear portion'flS.

of the carriage is adapted to be engaged by apinion A, carried byashaftB near its upper end. Near its lower end the shaft B carries an escapement wheel'Oj A. bar D extends from the center of the nniversaihar 13" and is secured at its rear end to' a cross bar E fulcrumed to the frame at F. The bar D carries an escapement pawl G, which normally arrests a tooth of the escapement' wheel 0 on the shaft B The bar D is further provided with a projection H in engagement with the stop pawl I, fulcrumed on the frame of the machine at-J- and pulled against the projection H by a spring. Thus as the universal bar is moved rearward, the pawl G releases the escapement wheel C, and the end of the stop pawl I is swung into the path of the escapement wheel. Both carriage portions are pivotally supported on the rear rod 20 of the machine frame, on which rod the carriage travels transversely of the machine. The front portion of the carriage is also providedwith. one or more rollers 21 adaptedto travel on a rail 22, carried by the shift frame 23.

As shown best in Figs. 7 and 8, the rail 22 is providedwith pins 22* adapted-to bel-received in openings 23 with suflicient play,-

to allow the rail to swing pivotally relatively to the frame 23 and to remain substantially vertical even when the frame 23 is tilted slightly. backward by being raised to its upper position. This shift frame 23 is hung on the frame of the machine by means of knife edges 24 (see Figs. 2 and 6) and'a spring 25 is employed to press the shift frame 23 upwards so as to counter-balance the weight of the front portion 16 of the carriage. In order that the action of the spring may be adjusted, I preferto rovide a series of notches, 23 in the shi t frameas shown in with the spring 25, with one or the other of these notches, the purchase of the spring is varied. The tension of the spring can be varied by'engaging either. the .upper-orthe lower opening of the liookl25 with the frame 23. The tension of the-sprin 25 may be further adjusted'bymeans of t e screw I" 25 which holds the lowerend of the spring.- Themechanism forshifting vthe platen portion-of the carriage into position for the printing of either small characters or capitals is as follows: The shift frame 23 (see Figs.

2, 4 and'6) is connected pivotally'at both f. ends by lugs 23 with: lifting vbars 26', preferably made in two sections, adjustable by means of-screws 26, so'that the said lifting bars maybe lengthened or.shortened. The upper portions of said bars have spring memhers 26 carrying the connecting pins 2 6- which enter into openings 26 in the lifting bars 26; thus if it is desired to disconnect the lifting bars, 26 from the shift frame 23, to ermit. of .theremovalof said shift frame, t e spring members 26 are pressed away from the'lugs 23", thus allowing the Connecting pins 26 to 1 be withdrawn from the openings 26 in the liftingbars 26 and the. shift frame to be removed. The lower end of each lifting bar has an'opening through which projects a pin 27*,

'mounted eccentrically upon a disk 27 se-.

curcdto'a' shaft 28. This shaft isjournaled in the frame by .means of ball bearings 29,

and also carries a pinion 30 (see Figs. 4 and f5). This pinion is located only at one'side .of the 'machine and engages atoothed sector 31 on a rock shaft "32, Thisrock shaft at the other. end of the machine carries an arm 33 (see Fig. .1). Shift keys34and 35 respectively are adapted to engage the arm 33 and the arm of the sector 31. Thus by depressing either one of the shift keys the carriage will be moved to its upper position, but if the shift key 34 has. been depressed, the carriagewill not return to its lowerpo'sition uponthe release ,of said shift key, but

willbe held in its upper position owing to the engagement of a latch 36 pivoted at 37 with a projection 3-1 of the sector 31. The latch 36 is under the infiuenceof a spring 37 and has-a beveled surface 37"- at the bottom,

which surface is adapted to beengaged by a pin35 on the shift key35. Thus-if the car-' riage is locked in its upper position and it is desired-to release it, the shift key 35 is depressed and the pin 35" will swing the latch 36 clear of the projection 31 and allow the carriage to drop. It will of course be understood that if-the shift key 35 is depressedwhile the carriage is in its lower position, the

the nah W111 be held out of thepath of the shift "key 35 until the operator restores the latch to its normal position.

I desire to call particular attentlonto the fact that the eccentric pins .27 reach their dead center positions when the carriage is in its upper or its lower printing position, thus looking the shift frame 23 against accidental movement in either printing position; v

In order to allow the carriage to be readily removed, I provide the following construction, shown in Fig. 3. The frame rod '20- on which the carriage moves has at its ends two recesses20, facing in the same direction in which recesses are located pins 20*, adapted to be engaged lay-stationary slotted supports 38 carriedby the frame of the machine. The

slots or recesses 20 are somewhat wider than the supports 38 so that the rod can be slid lengthwise to disengage the pins 20 from the slots of the supports 38. In order to lock the rod 20 in position, I provide a latch 3 9 movable vertically to fill the space between one of the supports 38 and the wall of the recesses 20 as shown-at the right in Fig.

3. By this construction the carriage can be readily removedv from the machine, and

another carriage. of different width substituted therefor.

'Various modifications may be'made without departingv from the nature of my invention I claim as my invention 1. In a typewriter, or riage,-a shift frame for moving. the carriage into different. printing pdsitions, bars conlike machine, a carnected with said frame, a pinion, a1 toothed sector en'gagin said pinion, a shaft carrying said pinion an provided with eccentric portions engaging said shift bars, and a shiftkey for swmgmg said sector.

2. In a typewriter, or like machine, a shift frame for the platen portion of the carriage,

a shaft carrying two arms, one of which is provided with a toothed sector, means 0 erated by said toothed sector for shiftin t e platen section of the carriage, a latch adapt ed to hold one of said arms in its raised position, and shift keys arranged to engage the said arms, one of the shift keys being constructed to swing said latch outof its locking position.

3. Ina typewriter or like machine, a shift key, a rocking arm adapted to be operated by said shift key and provided with a toothed sector lying in the same plane with the arms,

a pinion en aging with said sector, and a shift frame or the platen section of the carria e, adapted to be moved by the turning of sai pinion.

4. In a typewriter, or like machine, a removable carriage having a bar provided with recesses, stationary supports arranged to extend into part of said recesses, a pin and slot connection between'said supports and said bar, and a latch extendinginto one of said 4 recesses-to lock the carriage to the frame ofthe machine. V

5. In a typewriter, 'orflike machine, sta

tionary su ports having open slots facing in the same irection, a removable carriage provided with a bar having recesses of greater width than said supports, and pins to fit into the slots of the supports, and a movable latch arranged to extend into one of said recesses between one of the supports and a wall of said recess. I

6. In a typewritef, or like machine, a car- V ria e having a front section carrying a laten an a separate-rear section connecte with said front section and carrying amember of the step by step feed'meehanism, each section being mounted to swing about the sameaxis.

7. In a typewriter, or like machine, a carriage having a platen section and a Sepav rate escapement sect on connected therewith, each mounted to swing about the same axis.

8. In a typewriter, or like machine, a shift frame for-the platen portion of the carriage,

and a shift rail enga ed bythe carriage and loosely mounted ont e shift frame .to always remain substantially vertical.

9. In a typewriter, or like machine, a ver tically movable shift frame for the platen portion of the carriage, and a shift rail engaged by the carriage and ivoted to said shift frame about a horizontal axis.

10. In a typewriter or like machine, a vertically movable shift frame for the platen portion of the carria c, said shift frame being pivotally supported y means of knife edges.

1 1. In a typewriter or like machine, a carriage, a shift frame for moving the carria e into different printing positions, and mec anism for operating said shift frame, said mechanism'being upon a dead center when the carriage is in a printing position, to lock the shift frame against accidental movement.

12. In a type triter or like machine, acarriage, a shift frame for moving the carriage into different printing positions, bars con nected with said-frame, eccentricsfor operating said bars, and means for turning the ec. centrics, 'sai'd eccentrics being arranged to reach their dead center positions when the carriage is in a printing position.

13. In a typewriter or like machine, a carriage having a movable platen portion, means arranged to shift. saidplaten portion and to move in unison therewith, a projection on. said means, a latch normally in the path of said projection adapted to lock the platen portion of the carriage in one of its positions,

and a shift key disconnected from the latch but. arranged to disengage said latch from said projection.

. 14. In a typewriter or;like machine, a carriage, a shift frame for movmg the carriage into diiferentprinting positions, lifting bars detachably connected with said frame, eccentries for operating said bars, and means for turning the eccentrics, said eccentrics being arranged to reach their dead center positions when the carriage is in a printing position.

15. In a typewriter or like machine, a carriage, a shift frame for moving the carriage into different printing positions, lifting bars connected With said frame, movable means mounted on said lifting bars for normally locking said shift frame and lifting bars together and arranged to be moved 'to permit.

bars to said lugs,'and adapted to be presse aside to permit said lifting bars to be disconnected from said lugs, and mechanism for operating said lifting bars,-said"m echanism being upon a dead e'enterwhen the carriage is in a printing position, to lock the lifting bars against accidental movement.

In testimony whereof, I have hereunto set my hand in the presence .of two subscribing witnesses.

I FRANZ X. WAGNER.

Witnesses:

JOHN LOTKA, Y JOHN A; KEHLENBEQKQ 

